Bollinger Bands — Smooth (nrp, MTF) (MT4)

Bollinger Bands — Smooth (nrp, MTF) upgrades the classic Bollinger Bands with smooth, non‑repainting envelopes and multi‑timeframe (MTF) options. You get cleaner squeezes/expansions, earlier regime reads, and actionable alerts in MetaTrader 4.

What it shows

• Smoothed midline and upper/lower bands at dynamic STD multiples — reduced noise without lag spikes.
• MTF overlay to view higher‑TF bands while trading a lower TF.
• (Optional) arrows/alerts — band touches/breaks, squeeze exit, midline crosses and slope flips.

Trade ideas

1. Squeeze → breakout: wait for band contraction, then trade the first close outside with follow‑through; check MTF agreement.
2. Trend pullback: in an uptrend, buy pullbacks to the smoothed midline or lower band with a hook‑up; mirror for shorts.
3. Mean‑reversion: when bands are flat, fade exhausted outer‑band tags back to the midline.
4. (Optional) Volatility trail: use the opposite band or adaptive ATR as a trailing stop.

Inputs that matter

• Period / deviation — envelope width vs sensitivity.
• Smoothing method/length — noise reduction vs lag.
• MTF timeframe — H1/H4/D1 overlay for regime filter.
• Alerts — band breaks, midline crosses, squeezes.
• Colors/widths — quick visual read.

Suggested usage

• M5–M15: squeeze breakouts and pullbacks.
• M30–H4: swing continuations; ride the band.
• Daily+: regime read and trailing stops.

Installation (MT4)

1. Open MetaTrader 4 → File → Open Data Folder.
2. Copy bollinger-bands-smooth-nrp_mtf.ex4 to MQL4/Indicators.
3. Restart MT4 (or refresh Navigator) and attach Bollinger Bands — Smooth (nrp, MTF).
4. Tweak inputs → OK.

FAQ

Does it repaint? No on closed bars; MTF buffers update on their source TF’s close.
Use in EAs? Yes, via iCustom.
Markets? FX, indices, metals, crypto — anything on MT4.

Disclaimer: Test on a demo account first; risk management is essential.